A Randomized Controlled Trial Evaluating the Role of Negative Pressure Wound Therapy (NPWT) for Incisional Surgical Site Infections in Patients Undergoing Hepatopancreatobiliary Surgery

The wound is dressed using negative pressure wound therapy comprising of a single layer of sterile gauze followed by placement of a 18 Fr nelaton catheter and the wound further covered with 4 more layers of sterile gauze over the nelaton catheter. The wound is then covered with opsite dressing making it airtight. The nelaton catheter is attached to the wall suction port once the patient is shifted to the bed with pressure set at - 25 mm Hg.